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Uncommon star 24 EP

HD 153662

RA 255.8313° · Dec -50.4027° · star

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Score breakdown

· 4 badges
24 pts · Uncommon
Uncommon 34 pts → Rare
  • Bright giant +12
  • Distant (over 1,000 light-years) +6
  • Star +3
  • Yellow-white F-type star +3
Total score 24

10 more points to reach Rare.

Badges

  • Star · +3
  • Distant (over 1,000 light-years) · +6
  • Yellow-white F-type star · +3
  • Bright giant · +12

Trivia

What it actually is

  • Spectral class. Its spectrum reads F0II — an F-type star — a little hotter, whiter and shorter-lived than the Sun.
  • Where it is in life. It is a bright giant, well on its way to the largest stars there are.

Sense of scale

  • In perspective. Far away by human standards, yet still a local address inside the Milky Way's spiral arms.

Find it in the sky

  • How to spot it. At magnitude 7.7 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Ara.
  • Southern sky. It rides the southern half of the sky — an easier target the further south you are.
  • Best time of year. It stands highest in the middle of the night around June — that's when to go looking.

Could we get there?

  • Verdict. Impossible with our current technology — and the next millennium of it.

Getting there

  • Aboard Voyager 1. ≈ 25 million years at Voyager 1's speed (17 km/s).

Properties

absmag
-0.551
bv
0.551
constellation
Ara
dist ly
1424.2619
luminosity
144.6772
mag
7.65
name
HD 153662
spect
F0II

About HD 153662

HD 153662 is an uncommon star. It lies about 1,424.3 light-years from Earth, sits in the constellation Ara, shines at apparent magnitude 7.65 and has spectral type F0II.

Its spectrum reads F0II — an F-type star — a little hotter, whiter and shorter-lived than the Sun.

How to see it

Look for HD 153662 in the constellation Ara. At apparent magnitude 7.65, it is an easy target for binoculars.

Like any astronomical target, HD 153662 is best seen from a dark site away from city lights, and when it is above the horizon depends on your latitude and the time of year. The visibility panel above works out tonight's viewing window for your saved location.

Why HD 153662 is an uncommon star

HD 153662 scores 24 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 10 points would lift it into a rarer tier.

That score comes from 4 science badges — Star, Distant (over 1,000 light-years), Yellow-white F-type star and Bright giant — each earned for a real, measurable property of the object. Rarity on Spacedle is never random: the more remarkable an object's astrophysics, the more badges it collects, the higher it scores, and the rarer it ranks.